US3044922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making molded bearings
Assignee: Richardson Co
•
Filing: 1959-10-12
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Granted: 1962-07-17
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Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Henry C Kappel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:46
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; B; B29; B29C; B29C69/00; B29C48/00; B29C48/001; B29C48/0022; B29C48/03; B29C48/06; B29C48/09; B29L; B29L2031/00; B29L2031/04; B29L2031/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF MAKING A MOLDED BEARING WHICH COMPRISES IMPREGNATING A WOVEN CELLULOSIC FIBER WEB WITH A THERMOSETTING RESIN, CONVOLUTELY WINDING SAID WEB AROUND A HEATED MANDREL TO PARTIALLY ADVANCE THE CURE OF SAID RESIN AND TO FORM A SELF-SUSTAINING CYLINDER COMPOSED OF A PLURALITY OF ADHENSIVELY UNITED LAMINAE, SAID CYLINDER HAVING A CIRCUMFERENCE APPROXIMATING THE MAXIMUM LATERAL DIMENSIONS OF SAID BEARING, SEVERING SAID CYLINDER INTO SMALLER CYLINDRIACL SECTIONS OF A SIZE SUFFICIENT TO FILL THE CAVITY OF THE BEARING MOLD AND SUBJECTING SUCH A SECTION TO A MOLDING OPERATION UNDER HEAT AND PRESSURE WHEREBY AT LEAST A PORTION OF THE SIDES OF SAID SMALLER CYLINDRICAL SECTION ARE DEFORMED RADIALLY INWARD OF ITS LONGITUDINAL AXIS FORMING A CIRCULAR CONCAVE CONFIGURATION AND SAID THERMOSETTING RESIN IS SIMULTANEOUSLY CURED TO A HARD, INFUSIBLE STATE.
Claim 2
Independent Claim
132 words
A METHOD OF MAKING A MOLDED BEARING WHICH COMPRISES IMPREGNATING A WOVEN CELLULOSIC FIBER WEB WITH A THERMOSETTING RESIN, CONVOLUTELY WINDING SAID WEB AROUND A HEATED MANDREL TO PARTIALLY ADVANCE THE CURE OF SAID RESIN AND TO FORM A SELF-SUSTAINING CYLINDER COMPOSED OF A PLURALITY OF ADHENSIVELY UNITED LAMINAE, SAID CYLINDER HAVING A CIRCUMFERENCE APPROXIMATING THE MAXIMUM LATERAL DIMENSIONS OF SAID BEARING, SEVERING SAID CYLINDER INTO SMALLER CYLINDRIACL SECTIONS OF A SIZE SUFFICIENT TO FILL THE CAVITY OF THE BEARING MOLD AND SUBJECTING SUCH A SECTION TO A MOLDING OPERATION UNDER HEAT AND PRESSURE WHEREBY AT LEAST A PORTION OF THE SIDES OF SAID SMALLER CYLINDRICAL SECTION ARE DEFORMED RADIALLY INWARD OF ITS LONGITUDINAL AXIS FORMING A CIRCULAR CONCAVE CONFIGURATION AND SAID THERMOSETTING RESIN IS SIMULTANEOUSLY CURED TO A HARD, INFUSIBLE STATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |